Home / 18,786,805.60-28,171,325.40-7,277,663.56

Finding the Fourth Proportional to 18,786,805.60, 28,171,325.40 and 7,277,663.56

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Solution

The fourth proportional to 18,786,805.60, 28,171,325.40 and 7,277,663.56 is: 10,913,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786,805.60 : 28,171,325.40 = 7,277,663.56 : x
  2. Step 2: Convert to fraction form
    18,786,805.60/28,171,325.40 = 7,277,663.56/x
  3. Step 3: Cross multiply
    18,786,805.60x = 28,171,325.40 × 7,277,663.56
  4. Step 4: Simplify right side
    18,786,805.60x = 205,021,428,300,482.41
  5. Step 5: Solve for x
    x = 205,021,428,300,482.41/18,786,805.60
  6. Step 6: Final answer
    x = 10,913,054.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.